【发布时间】:2019-10-13 09:35:06
【问题描述】:
我需要将一个对象推入一个数组到数据库中,但我得到一个错误。我究竟做错了什么 ?找到了这样一个话题Push items into mongo array via mongoose但是不能正常申请 ..................................................... ..................................................... ....................
habalka.files.push({_id: "tata", destination: "Harry"});
habalka.save((res) => {
console.log(res)
});
当我尝试这段代码时,我得到了这个答案
MongooseError: 文档在保存之前必须有一个 _id
数据库
{
"_id": "78935e75-86c0-47c2-a76d-2b52a0a71e7c",
"files": [
{
"_id": "67e848e5-7fb0-480b-a1d3-f3a09d1b57f7",
"destination": "./uploads/78935e75-86c0-47c2-a76d-2b52a0a71e7c",
"filename": "67e848e5-7fb0-480b-a1d3-f3a09d1b57f7.mp3",
"path": "uploads\\78935e75-86c0-47c2-a76d-2b52a0a71e7c\\67e848e5-7fb0-480b-a1d3-f3a09d1b57f7.mp3",
"folder": "78935e75-86c0-47c2-a76d-2b52a0a71e7c",
"info": {
"size": 12120000,
"mimetype": "audio/mp3",
"encoding": "7bit",
"originalname": "Попрошайка Евгений Владимирович из ФАСП. Выпуск 10.mp3",
"fieldname": "selectedFile"
},
"date": {
"$date": "2019-05-23T01:07:27.122Z"
}
}
],
"date": {
"$date": "2019-05-23T01:07:27.123Z"
},
"__v": 0
}
架构
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const HabalkaSchema = new Schema({
_id: {
type: String
},
files: [
{
_id: {
type: String
},
destination: {
type: String
},
filename: {
type: String
},
path: {
type: String
},
folder: {
type: String
},
info: {
size: {
type: Number
},
mimetype: {
type: String
},
encoding: {
type: String
},
originalname: {
type: String
},
fieldname: {
type: String
},
},
date: {
type: Date,
default: Date.now
}
}
],
date: {
type: Date,
default: Date.now
}
});
module.exports = Habalka = mongoose.model('habalka', HabalkaSchema);
请求
let Habalka = habalka.findOne({_id: "78935e75-86c0-47c2-a76d-2b52a0a71e7c"});
Habalka.files.push({destination: "Harry"});
Habalka.save();
【问题讨论】: